Antiskid chain



J. W. PIGOTT ANTISKID CHAIN Filed Nov. 21, 1923 Patented Dec. 2, 1924.

JEWELL W. PIGOTT, 0F TYLERTOWN, MISSISSIPPI.

ANTISKID CHAIN.

Application filed November 21, 1923. Serial 0. 676,101.

To all wiz am it may concern:

Be it known that I, JEWELL W. PIGo'r'r,

citizen of the United States, residing at Tylertown, in the county of \Valthall and State of Mississippi. have invented certain new and useful Improvements in Antiskid Chains, of which the following is a specification.

- This invention relates to anti-skid chains for vehicle wheels particularly adapted for use upon broad tread truck wheels although capable of general application.

The primary object of the invention is to provide an anti-skid chain which is of simple and durable construction,- and eflicient in operation.

Another object of the invention is to provide an anti-skid chain which may be easily and expeditiously applied to or removed from a vehicle wheel.

A further-object of the invention is to provide an anti-skid chain which will effectively prevent longitudinal and lateral skidding of a vehicle whose wheels are equipped with the same.

Still another object of the invention is to provide an anti-skid chain which will not creep materially circumferentially of the wheels and wherein the said chain of which will be caused to snugly engage the tire tread upon the occurrence of such slight circumferential creeping that is allowed.

Other objects will appear as the nature of.

the invention is better understood, and the same consists 1n the novel form, comb-mation, and arrangement of parts hereinafter more fully described, shown in the accompanymg drawlngs and claimed.

In the drawing, wherein like reference characters designate corresponding parts throughout the several views:

Figure 1 is a side elevational View of a vehicle wheel equipped with an anti'skid chain constructed in accordance with the present invention.

Figure 2 is an enlarged substantially central radial sectional view-of the device shown in Figure 1, and

Figure 3 is a fragmentary lan view showing a portion of the said chain of the device with ortions of the attached radial chain.

Re erring more in detail to the drawings, the present device embodies a tread chain consisting of a pluralit ofchain loops 5 serially connected at diametrically opposite points centrally of the the tread as indicated at 6 and having radial side chains 7 attached to the opposite sides thereof intermediate the points of connection of the loop elements 5 indicated at 6. In other words, as viewed when in use upon the wheel, the chain loops 5 are diamond shape in plane with the central circumferentially aligned points thereof connected as mentioned. above at 6 and with the side transversely aligned corners thereof connected to the outer ends of the radial side chains 7 as indicated at 8. Each chain loop 5 thus presents a V-shaped portion at the tread of the tire for resisting skidding longitudinally in either direction irrespective of whether the vehicle is travelling forwardly or backwardly, while at the sam time similar V-shaped portions are presented at opposite sides of each chain loop 5 for effectively preventing lateral or sidewise skidding in either direction. The tread chain thus constructed is of endless form and in order to facilitate its application to or re moval from the tire, one of the loops 5 is composed of sections detachably connected at opposite sides as generally indicated at 9.

Dlsposed at each side of the wheel inwardly of the felly thereof is an endless chain 10 that is formed of a length of chain having the ends thereof detachably jointed as indicated at 11 in Figure 1, and the chain 10 at one side of the Wheel is connected with the radial chains 7 at the same sides thereof, while the chain 10 at the other side of the wheel is similarl attached to the radial chains 7 at said ot er side. Thus, the chains 7 will be drawn radially inwardly upon tightening of the chain 10, at one side of the wheel so as to place the' chain loops 5 of the tread chain under tension for drawing the latter into snug engagement with the tread of the tire and causing the same to assume a pronounced triangular form as shown in Figure 3, and as described above. When the chains 10 are disposed thru the inner end links of the chain 7, said chains 10 will assume the angular form as shown in side elevation, in Figure 1. In order to further aid in holding the side chains into engagement with the tread of the tire, and to prevent outward movement or separation of the side chains 10, the latter are connected at intervals by means of a plurality of transverse double ended hooks 12 extending transversely of thewheel between certain of the spokes and inwardly of the wheel felly as shown in Figures 1 and 2.

To aid further in maintaining the anti skid chain in position on the tire, I provide what may be conveniently referred to as chain tightening device. This device com; prises two separate lengths of chain, the short length of which is represented by the reference character 13, the same being connected at its inner end to one end of a link 14, which in turn has ivotal connection with alever 15, as at 16. he lever is adapted to be swung into overlapping relation with the link, and to limit the'swingin movement it is provided at its free end wit the laterally directed lug 16,constitnting a stop, the same being intended to engage the ad acent ed 'e of the link. i The longer length of chain which is designated by'the reference character 18 is connected at its inner end to an car 17 on the intermediate portion of the lever 15. In practice, the outer end of the chains 13 and 18 may be connected in any appropriate manner to the aforesaid side chain 10.

It'will thus be seen that when the lever 15 is swungi-nwardly about the pivot 16, the adjacent end of thechain section 18 will be moved inwardly apast the pivot 16 for loosening the device.- On the other hand, when said lever 15 isswung outwardly to the position shown' in Figure 1, the adjacent end of the chain section 18 is positioned outwardly of the pivot 16 and the chain 10 to chain into snu which this device is ada ted to be connected is effectively tightened ndrawing the said en agement with the tread of the tire. T 1e wdmeel shown consists of a hub H rigidly connected with the wheel felly F b means of radial rigid s okes S, which feli y carries a suitable tire When it is desired to remove the anti-skid chain, the chain tightening device is loosened in the manner described, the double ended hooks 12 are removed, and the hooks 9 and 11 carried by the anti-skid chains are detached.

From the above descri tion, it is believed that the construction an operation as well as the advantages of the present invention will be readily understood'and appreciated by those skilled in the art.

What I claim as new is:

A chain tightenin device comprising a link, a short length 0 chain connected to one end of said link, a lever ivotally connected to the opposite end of t 1e link, said lever being adapted to swing into overlapping relation with said link and being provided at its free end with a stop to engage the link, the lever being also rovided intermediate its ends with an attac ing ear, and another length of chainconnected at its inner end to said attaching ear.

In testimony whereof I afiix m signature.

JEWELL W. IGOTT; 

